Life history and host specificity of the Japanese flea beetlesTrachyaphthona sordidaandT.nigrita(Coleoptera: Chrysomelidae), potential biological control agents against skunk vine,Paederia foetida(Rubiaceae), in the southeastern parts of the United States and Hawaii

Two new genera from China (Taumaceroides Lopatin and Yunnaniata Lopatin) and 11 new species (Smaragdina quadrimaculata Lopatin, S. oblongum Lopatin, Hyphaenia volkovitshi Lopatin, Arthrotus daliensis Lopatin, Taumaceroides sinicus Lopatin, Yunnaniata konstantinovi Lopatin, Calomicrus yunnanus Lopatin, C. minutissimus Lopatin, Hermaeophaga belkadavi Konstantinov, H. dali Konstantinov from China, and H. korotyaevi Konstantinov from South Korea) are described and illustrated. A key to Hermaeophaga species of Eurasia is presented. Since Hermaeophaga dali was collected feeding on Paederia foetida L. (Rubiaceae), which is an invasive noxious weed in the United States, this species has potential as a biological control agent of this weed.

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Host Specificity of Thamnurgus euphorbiae Küster (Coleoptera: Scolytidae): A Potential Biological Control Agent of Leafy Spurge Euphorbia esula L. (Euphorbiaceae) in the United States

Environmental Entomology ◽

10.1603/0046-225x-33.6.1673 ◽

2004 ◽

Vol 33 (6) ◽

pp. 1673-1680 ◽

Cited By ~ 1

Author(s):

Gaetano Campobasso ◽

Gianni Terragitti ◽

Enzo Colonnelli ◽

Neal R. Spencer

Keyword(s):

United States ◽

Biological Control ◽

Host Specificity ◽

Biological Control Agent ◽

The United States ◽

Leafy Spurge ◽

Control Agent ◽

Euphorbia Esula

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FIRST REPORT OF THE ESTABLISHMENT OF CYPHOCLEONUS ACHATES (FAHRAEUS) (COLEOPTERA: CURCULIONIDAE) ON SPOTTED KNAPWEED, CENTAURE A MACULOSA LAMARCK, IN THE UNITED STATES

The Canadian Entomologist ◽

10.4039/ent129373-2 ◽

1997 ◽

Vol 129 (2) ◽

pp. 373-374 ◽

Cited By ~ 13

Author(s):

J.M. Story ◽

W.R. Good ◽

L.J. White

Keyword(s):

United States ◽

Biological Control ◽

North America ◽

Host Specificity ◽

The United States ◽

Centaurea Maculosa ◽

Spotted Knapweed ◽

Root Cortex ◽

Potential Impact ◽

Root Feeding

Cyphocleonus achates (Fahaeus) is a Eurasian, root-feeding weevil introduced into North America for the biological control of spotted knapweed, Centaurea maculosa Lamarck. Stinson et al. (1994) reported that C. achates is one of the most damaging root-feeding insects on knapweed in Eurasia and should be a valuable addition to the biocontrol effort in North America. The biology, host specificity, and potential impact of the weevil were described by Stinson et al. (1994). Larvae mine into the root cortex where they induce formation of a conspicuous root gall. Feeding by older larvae causes much damage, especially to small plants or plants containing several larvae. The weevil overwinters as a larva in the root and emerges as an adult from mid-July to October. Adult weevils are large (14 mm long) and flightless, and feed on knapweed foliage. The weevil has one generation per year.

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Integrated Control of Waterhyacinth (Eichhornia crassipes) with a Pathogen, Insects, and Herbicides

Weed Science ◽

10.1017/s0043174500068338 ◽

1986 ◽

Vol 34 (S1) ◽

pp. 26-30 ◽

Cited By ~ 64

Author(s):

R. Charudattan

Keyword(s):

United States ◽

Biological Control ◽

Preventive Maintenance ◽

Eichhornia Crassipes ◽

Integrated Control ◽

The United States ◽

Biological Control Agents ◽

The Past

Although the problems with waterhyacinth (Eichhornia crassipes[Mart.] Solms; # EICCR) have diminished in the United States over the last decade, the weed continues to be troublesome and requires constant management on a maintenance basis (29, 30). Chemical herbicides are currently the principal means of control when an immediate solution to a waterhyacinth problem is needed. Preventive maintenance programs also rely on chemicals to keep the weed populations at acceptable levels and to prevent weed migration into unwanted areas. However, when control is not urgently required or is economically unfeasible due to the location of the weed, a combination of biological control agents is used. The latter may have been the important factor that contributed to the lessening of the weed problem in this country over the past decade (43).

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